$OpenBSD: patch-drivers_usbhid-ups_c,v 1.9 2017/01/16 00:12:15 jca Exp $
--- drivers/usbhid-ups.c.orig	Tue Dec 29 13:08:34 2015
+++ drivers/usbhid-ups.c	Sun Jan 15 23:54:35 2017
@@ -963,7 +963,7 @@ void upsdrv_initups(void)
 	   regular expression (USB) or device_path (SHUT) */
 	ret = comm_driver->open(&udev, &curDevice, subdriver_matcher, &callback);
 	if (ret < 1)
-		fatalx(EXIT_FAILURE, "No matching HID UPS found");
+		fatalx(EXIT_FAILURE, "No matching HID UPS found - check permissions on /dev/ugen* and /dev/usb*");
 
 	hd = &curDevice;
 
